摘要
传统定时车流调度模型,主要采用周期性边界条件,其对于车流量密度较大情况下,不同车速车辆急停状态下交叉路口车流无法进行准确控制。考虑不同急停车辆速度的条件下,提出了一种主动式交叉路口车流引导的调度模型,分析不同车速急停状态下的交叉路口车流引导过程,不同车速急停车辆与交叉路口构建通信机制,依据"时间片"调度方法,将交叉路口分配给对应的通行车辆。采用开放边界条件,基于不同车速急停状态下的交叉路口车流引导过程,融入车辆急停概率,通过数值模拟,实现交叉路口车流的有效调度。实验结果表明,相比传统定时调度模型,具有较低的平均等待时间。
Traditional timing traffic scheduling model, mainly USES the periodic boundary condition, for its traffic density is larger cases, intersection traffic flow under different speed of the vehicle stop state be controlled accurately. Consider different stop under the condition of the vehicle speed, this paper puts forward a scheduling model of intersection traffic flow guidance, active analysis under different speed in the state of the intersection traffic flow guidance process, different speed stop vehicles and intersection to build communication mechanism, on the basis of＆quot;time slice＆quot;scheduling method, will be assigned to the corresponding traffic at the intersection. With an open boundary condition, based on the intersection traffic flow under different speed stop state and the boot process, integrated into the vehicle stop probability, through numerical simulation, realize effective scheduling of the intersection traffic flow. The experimental results show that, compared with the traditional timing scheduling model, with a low average waiting time.
出处
《科技通报》
北大核心
2014年第11期173-175,197,共4页
Bulletin of Science and Technology
基金
广东省自然科学基金项目(项目编号:S2013010013261)
关键词
不同车速
急停状态
交叉路口
different speed
stop state
the intersection
